Full Text Searchable PDF User Manual
T
T-- 11 D
D
SERVICE MANUAL
AM/FM Stereo Tuner
Effective : December, 2002
S-0075A
CONTENTS
1 SPECIFICATIONS
・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・
2
2 ADJUSTMENTS AND CHECKS
・・・・・・・・・・・・・・・・・・・・・・・・
3
3 EXPLODED VIEWS AND PARTS LIST
・・・・・・・・・・・・・・・・・
6
4 PC BOARDS AND PARTS LIST
・・・・・・・・・・・・・・・・・・・・・・・・
8
NOTES
●
PC boards shown are viewed from parts side.
●
The parts with no reference number or no parts number in the
exploded views are not supplied.
●
As regards the resistors and capacitors, refer to the circuit diagrams
contained in this manual.
●
£
Parts marked with this sign are safety critical components. They
must be replaced with identical components - refer to the appropriate
parts list and ensure exact replacement.
1 SPECIFICATIONS
−
2
−
FM Tuner Section
(Without notes 98 MHz, 65 dBf)
Tuning Range:
87.5 MHz – 108.0 MHz (50 kHz steps)
Usable Sensitivity (IHF):
Mono: 11.2 dBf
50 dB Quieting Sensitivity:
Mono: 15 dBf
Stereo: 20 dBf
Total Harmonic Distortion (1 kHz):
Mono: 0.4%
Stereo: 0.5%
Frequency Response:
30 Hz – 15 kHz, +1/ –1.5 dB
Stereo Separation (1 kHz):
40 dB
Signal-to-Noise Ratio:
Mono: 72 dB
Stereo: 70 dB
AM Tuner Section
Tuning Range:
522 kHz – 1,620 kHz (9 kHz steps)
Usable Sensitivity:
55 dB/m
Total Harmonic Distortion:
0.8% at 85 dB/m
Signal-to-Noise Ratio:
45 dB at 85 dB/m
General
Power Requirements:
230 V AC, 50 Hz
Power Consumption:
8 W
Dimensions (W x H x D):
435 x 102 x 270 mm
Weight (net):
3.6kg
Standard Accessories:
AM Loop Antenna x 1
FM Lead-type Antenna x 1
Power Control Cord x 1
●
Improvements may result in specifications and features
changing without notice.
2 ADJUSTMENTS AND CHECKS
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3
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ALIGNMENT INSTRUCTIONS
EQUIPMENT NEEDED:
AM Signal Generator
FM Signal Generator
Oscilloscope
VTVM(AC, DC)
Test loop antenna (AW Adjustment)
Dummy antenna (FM Adjustment)
Stereo signal modulator
Frequency counter
Distortion analyser
IMPORTANT
1. Check power-source voltage.
2. Set the function switch to band aligned.
3. Keep the signal input as low as possible to adjust accurately.
4. Modulation and modulation frequency.
Item
Modulation
Modulation frequency
Band
AM
30%
400Hz
FM
100%(75KHz Dev.)
400Hz
ADJUSTMENT POINT
MAIN PCB
T2
T3-2
T4
T5
TVR5
TVR4
TVR2
TVR1
TVR3
T1
TVC1
TVC2
TP1
L2
RF1
P5
P6
T1
T3-1
−
4
−
1. AM TRACKING VOLTAGE ADJUSTMENTS
DC VOLTMETER ........................... CONNECT TO TEST POINT P5 and GND
NO.
Band
Frequency
Adjust for
Adjustment
1
AM
603KHz
2.2V
T1
2
AM
1620KHz
9.0V
TVC1
2. AM RF ADJUSTMENT
Signal Generator ........................ Connects to the AM ANT. Coil through the loop antenna.
Adjust for the indication of VTVM of the wave form of scope to be maximum.
BAND
Step
Frequency
Adjust for
Adjustment
1
630KHz
Maximum sensitivity
L2, T2
2
1422KHz
Maximum sensitivity
TVC2
3
Repeat steps 1 and 2 several times.
AM
NO.
Frequency
Adjust for
Adjustment
1
97.8MHz
L rejection
T4
2
P5
GND
3
97.8MHz
97.8MHz
TVR3
T5
L, R rejection
R rejection
3. FM 19kHz REJECTION ADJUSTMENT
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5
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4. FM MONO DISTORTION ADJUSTMENT
DC VOLT METER ........................Connect to TP1(-), TP1(+) Through the choke coll (100 H)
Signal Generator........................Connect to FM ANT Jack (FM IN) through the dummy.
Distortion Meter .........................Connect to the output.
NO.
Frequency
Adjust for
Adjustment
1
97.8MHz
DC Voltmeter 0V
T3-1
2
97.8MHz
Minimum T.H.D
T3-2
3
5. FM/AM AUTO STOP LEVEL ADJUSTMENT
FM SIGNAL GENERATOR ........................Connect to FM ANT Jack (FM IN) through the dummy
AM SIGNAL GENERATOR.........................Connect to AM ANT, Coil through the Loop antenna
BAND
STEP
SIGNAL GENERATOR
Adjust for
Adjustment
1
97.8MHz 16dB
Display ON
TVR1
1
630KHz 74dB
Display ON
TVR2
AM
FM
TUNED
TUNED
4
Repeat steps 1 and 2 Several times.
97.8MHz
Minimum T.H.D
T1
TP1(-)
TP1(+)
NO.
Frequency
Adjust for
Adjustment
1
97.8MHz
L separation
TVR5
2
97.8MHz
TVR4
R separation
6. FM SEPARATION ADJUSTMENT
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6
−
1
2
3
4
5
6
7
8
9
0
q
w
e
r
t
y
u
i
o
p
a
s
d
f
g
3 EXPLODED VIEWS AND PARTS LIST
−
7
−
EXPLODED VIEW LIST
REF.NO.
PARTS NO.
DESCRIPTION
REMARKS
1
9A09523500
FACE PLATE
75L950W0269*
2
9A09503000
WASHER,POWER
85A716******
3
9A09524400
WASHER
85A717******
4
9A09523900
KNOB,POWER PUSH
80KB456*****
5
9A09230300
ACRY
85A398******
6
9A09524000
KNOB,PUSH 11P
80KB457*****
7
9A09230200
ACRY
85A636******
8
9A09524100
KNOB,PUSH 6P
80KB458*****
9
9A09524200
KNOB,PUSH
80KB459*****
10
9A09524300
KNOB,PUSH
80KB460*****
11
9A09523600
FRONT PLATE
78C287200000
12
9A09525250
KEY PCB ASSY
T1DB4230****
13
9A09503700
FOOT CUSHION
81AD289*****
14
9A09230000
BOTTOM PLATE
78C266200000
15
9A09231700
BRACKER,U‑TYPE
78C206000000
16
9A09525150
POWER PCB ASSY
T1DB3852****
17
9A09523800
UPPER COVER
78C287300000
18
9A09525050
TUNER PCB ASSY
T1DB3850****
19
9A09529600
B4231 PCB ASSY
60B4231*****
20
£
9A09231500
BUSHING,SB4F‑4
98BSB4F4****
21
£
9A09503900
AC CORD
654H2E20B21S
22
9A09231300
HOLDER,ANT
85A271******
23
9A09523700
REAR PLATE
78C2839W0350
24
9A09502600
END CAP LIFT
76H670000000
25
9A09502700
END CAP RIGHT
76H671000000
F1,F2
£
9A09231900
FUSE,0.5A/250V T
265200P521TQ
F3
£
9A09232000
FUSE,0.1A/250V T
265200P121TQ
INCLUDED ACCESSORIES
REF.NO.
PARTS NO.
DESCRIPTION
REMARKS
9A09146800
OWNER'S MANUAL
9904T1D*****
9A09525500
FM 75 OHM ANT
64T0005*****
9A09233800
LOOP ANT
64LA75******
−
8
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4 PC BOARDS AND PARTS LIST
B4230/B4231 PCB
B3850 PCB
B3852 PCB
KEY PCB ASSY
REF.NO.
PARTS NO.
DESCRIPTION
9A09525250
KEY PCB ASSY B4230
9A09529500
KEY PCB B4230
9A09529300
CONNECTOR,ED‑G14 2P
9A09529400
CONNECTOR,ED‑G15 2P
D1,D2
9A09237300
DIODE,1N4148
IR1
9A09247100
INFERRED RECEIVER,IR‑9G
J1 TO J2
9A09247800
CONNECTOR,ED‑491 7P
J2 TO J3
9A09247700
CONNECTOR,ED‑E67 8P
J3 TO J8
9A09528500
CONNECTOR,ED‑F25 2P
Q3
9A09240800
TR,2SA965
Q4
9A09240500
TR,2SC1815BL
Q5
9A09511100
TR,2SC2240
R2
9A09246800
R,NETWORKS 10KX4 5P4R
R9
9A09528600
R,NETWORKS 10KX6 7P6R
R25,R26
9A09246700
R,NETWORKS 10KX7 8P7R
SW1‑SW19
9A09247000
TACT SW,SKHVBK3710
SW21‑SW23
9A09247000
TACT SW,SKHVBK3710
U1
9A09528800
IC,BU1923
U2
9A09246500
IC,TMP87PM78F
U3
9A09528900
IC,74HC74DT
U4
9A09246900
IC,93C66
U6
9A09518900
IC,TMP87CH47U
U7
9A09529000
IC,74HC04DT
U45
9A09247200
FL TUBE,25U39167TAN
X1
9A09529100
CRYSTAL,8MHZ 49US
X3
9A09529200
CRYSTAL,4.332MHZ 49US
B4231 PCB ASSY
REF.NO.
PARTS NO.
DESCRIPTION
9A09529600
B4231 PCB ASSY
9A09529500
KEY PCB B4230
J5
9A09244800
WAFER,5045‑2P
J6
9A09529700
PHONE JACK
J7
9A09244600
TERMNAL GND,K‑15
TUNER PCB ASSY
REF.NO.
PARTS NO.
DESCRIPTION
9A09525050
TUNER PCB ASSY B3850
9A09245200
PCB,B3850/B3852/B3853
C95
£
9A09241800
C,ELEC 2200UF/25V
C97
£
9A09240000
C,ELEC 100UF/100V
C98
£
9A09240300
C,ELEC 47UF/63V NP
D1,D2
9A09237300
DIODE,1N4148
D4
9A09237300
DIODE,1N4148
D5
9A09237500
ZENER DIODE,5.6V 0.5W
D6
9A09237600
ZENER DIODE,22V 0.5W
D7‑D10
£
9A09237400
DIODE,1N4007
F1,F2
9A09241200
FUSE HOLDER
J1
9A09244500
RCA JACK
J2
9A09245000
WAFER,5045‑7P
J3
9A09525900
WAFER,5045‑8P
J4
9A09244900
WAFER,5045‑6P
TUNER PCB ASSY
REF.NO.
PARTS NO.
DESCRIPTION
J8,J10
9A09244800
WAFER,5045‑2P
JP1
9A09526000
ANT TERMINAL
L1
9A09242600
CHOKE,2.2UH
L2
9A09242800
I.F.T,LA‑003
P2
9A09244600
TERMNAL GND
P5,P6
9A09244700
PIN,1.5x3.5x9
Q1,Q2
9A09240500
TR,2SC1815BL
Q3
9A09240600
TR,2SA1015
Q4
9A09240500
TR,2SC1815BL
Q5
9A09241600
TR,2SK192A
Q6‑Q8
9A09240500
TR,2SC1815BL
Q10
9A09240500
TR,2SC1815BL
Q12,Q13
9A09240700
TR,2SC3327A
Q14
9A09240500
TR,2SC1815BL
Q15
9A09240600
TR,2SA1015
Q16,Q17
9A09240700
TR,2SC3327A
Q19
9A09240500
TR,2SC1815BL
Q20
9A09242700
TR,2SB633
Q21,Q22
9A09240500
TR,2SC1815BL
Q23
£
9A09240800
TR,2SA965
R35
9A09241500
NTC THERMISTORS,300 OHM
R41
£
9A09527300
R,CARBON 1/2W T 10
R82
£
9A09527600
R,CARBON 1/2W T 47
R90
£
9A09241400
R,M.O.F 1W 4K7
RF1
9A09243300
FM TUNER,TFFJ4E570A
SW2
9A09243400
TACT SW,SFKHHLU1714
T1
9A09242900
IFT,LO‑O03
T2
9A09527700
IFT,A‑8B C02‑8072
T3
9A09243100
IFT,0203‑W009
T4,T5
9A09243200
IFT,10DF01
TP1
9A09244400
PIN,2541‑2P
TVC1,2
9A09243500
TRIMMER,CTY‑112B 8P
TVR1
9A09241000
TVR,6 H‑TYPE 30K
TVR2
9A09240900
TVR,6 H‑TYPE 10K
TVR3
9A09241000
TVR,6 H‑TYPE 30K
TVR4,5
9A09241100
TVR,6 H‑TYPE 1M
U1
9A09241900
IC,AN278
U2
9A09242000
IC,LA1266
U3
9A09242100
IC,LA3450
U4
9A09242200
IC,TC9257P
U5,U7
£
9A09242300
IC,AN7805
U8
£
9A09242400
IC,AN7812
U8
9A09244300
HEAT SINK
VD1,2
9A09243600
VARICAP,1SV149
W37
9A09527800
CHOKE,15MH
X1
9A09243700
CRYSTAL,7.2MHZ
Z1
9A09243800
CERAMIC FILTER,SFZ10.7MS2
Z2
9A09243900
CERAMIC FILTER,SFZ10.7MS3
Z3
9A09244000
CERAMIC FILTER,SFZ450B
Z4
9A09244200
CERAMIC FILTER,BFU450CN
Z5
9A09244100
CERAMIC FILTER,CSB456F11
−
9
−
POWER PCB ASSY
REF.NO.
PARTS NO.
DESCRIPTION
9A09525150
POWER PCB ASSY B3852
9A09245200
PCB,B3850/B3852/B3853
9A09527900
KIT,B3582
F3
9A09241200
FUSE HOLDER
J5 TO J4
9A09245600
CONNECTOR,ED‑488 6P
J9
9A09245400
WAFER,3963‑3P2T
T6
£
9A09245500
TRANSFORMER
−
10
−
8
6
7
4
5
2
3
1
E
D
C
B
A
SCHEMATIC DIAGRAM
T-1D
AM/FM Stereo Tuner
T
T-- 11 D
D
1 st Issue; August 2002
8
6
7
4
5
2
3
1
E
D
C
B
A
SCHEMATIC DIAGRAM
T-1D
AM/FM Stereo Tuner
T
T-- 11 D
D
1 st Issue; August 2002